public void Connect()
{
if (protocol > 9 || protocol != UnknownProtocol)
{
throw new ArgumentOutOfRangeException(protocol.ToString(), "Protocol must be a value between 1 and 9, inclusive.");
}
ObdState = new ObdState();
obdport.Connect();
FireConnectionChangedEvent(_connected);
LastResponse = WriteAndCheckResponse("ATZ"); // reset
LastResponse = WriteAndCheckResponse("ATE0"); // echo off
LastResponse = WriteAndCheckResponse("ATL0"); // line feeds off
// no longer allow the ELM's auto detect since we need to know which protocol we're using
if (protocol == UnknownProtocol || protocol == 0)
{
for (protocol = 1; protocol <= 9; protocol++)
{
LastResponse = WriteAndCheckResponse("ATSP" + protocol); // OBD protocol
try
{
LastResponse = WriteAndCheckResponse("01 00"); // send command to initialize comm bus (i.e. get PIDs supported)
break;
}
catch (ObdException)
{
Trace.WriteLine("It's not protocol " + protocol);
}
}
if (protocol == 10)
{
throw new ObdException("Could not find compatible protocol. Ensure the cable is securely connected to the OBD port on the vehicle.");
}
}
else
{
LastResponse = WriteAndCheckResponse("ATSP" + protocol); // OBD protocol
LastResponse = WriteAndCheckResponse("01 00"); // send command to initialize comm bus (i.e. get PIDs supported)
}
_protocol = protocol;
LastResponse = WriteAndCheckResponse("ATH1"); // turn on headers (needed for ECU)
_supportedPids = GetSupportedPids();
int count = 0;
foreach (var pidEntry in _supportedPids)
{
if (pidEntry.Value.Count > count)
{
_currentEcu = pidEntry.Key;
count = pidEntry.Value.Count;
}
}
Trace.WriteLine("Using ECU " + _currentEcu + " with " + count + " PIDs");
if (poll)
{
_event = new AutoResetEvent(false);
Thread t = new Thread(PollObd);
t.IsBackground = true;
t.Name = "ObdPoller";
t.Start();
}
}
public void Connect(string comPort, int baud, int protocol, bool poll)
{
if(protocol > 9 || protocol != UnknownProtocol)
throw new ArgumentOutOfRangeException(protocol.ToString(), "Protocol must be a value between 1 and 9, inclusive.");
ObdState = new ObdState();
_serial = new SerialPort(comPort, baud);
_serial.NewLine = ">"; // responses end with the > prompt character
_serial.Open();
_errorCount = 0;
_connected = true;
FireConnectionChangedEvent(_connected);
LastResponse = WriteAndCheckResponse("ATZ"); // reset
LastResponse = WriteAndCheckResponse("ATE0"); // echo off
LastResponse = WriteAndCheckResponse("ATL0"); // line feeds off
// no longer allow the ELM's auto detect since we need to know which protocol we're using
if(protocol == UnknownProtocol || protocol == 0)
{
for(protocol = 1; protocol <= 9; protocol++)
{
LastResponse = WriteAndCheckResponse("ATSP" + protocol); // OBD protocol
try
{
LastResponse = WriteAndCheckResponse("01 00"); // send command to initialize comm bus (i.e. get PIDs supported)
break;
}
catch(ObdException)
{
Trace.WriteLine("It's not protocol " + protocol);
}
}
if(protocol == 10)
throw new ObdException("Could not find compatible protocol. Ensure the cable is securely connected to the OBD port on the vehicle.");
}
else
{
LastResponse = WriteAndCheckResponse("ATSP" + protocol); // OBD protocol
LastResponse = WriteAndCheckResponse("01 00"); // send command to initialize comm bus (i.e. get PIDs supported)
}
_protocol = protocol;
LastResponse = WriteAndCheckResponse("ATH1"); // turn on headers (needed for ECU)
_supportedPids = GetSupportedPids();
int count = 0;
foreach(var pidEntry in _supportedPids)
{
if(pidEntry.Value.Count > count)
{
_currentEcu = pidEntry.Key;
count = pidEntry.Value.Count;
}
}
Trace.WriteLine("Using ECU " + _currentEcu + " with " + count + " PIDs");
if(poll)
{
_event = new AutoResetEvent(false);
Thread t = new Thread(PollObd);
t.IsBackground = true;
t.Name = "ObdPoller";
t.Start();
}
}
public ObdChangedEventArgs(ObdState state)
{
ObdState = state;
}
public ObdChangedEventArgs(ObdState state)
{
ObdState = state;
}
private void SetInstrumentClusterValues(ObdState measurement)
{
foreach (var item in _skins)
{
if(!item.IsVisible)
continue;
item.IsMalfunctionVisible = measurement.MilLightOn;
item.IsLowFuelVisible = item.Fuel < 10;
item.MPG = measurement.MilesPerGallon;
item.MPH = measurement.MilesPerHour;
item.RPM = measurement.Rpm;
item.Fuel = measurement.FuelLevel;
item.Temperature = measurement.EngineCoolantTemperature;
}
}